Shuttle-box construction for looms



Dec. 30, 1930. J. F. COLGAN SHUTTLE BOX CONSTRUCTION FOR LOOMS Filed Dec. 20. 1928 at E v T N\ L r M\ Patented Dec. 3O, 5 1930 I sr'res wearer airsrssicn .zrarrns or. GOLGAN, or rnovrnnncn, :enonn ISLAND; Assreivon T0 cnoMr'ron &

" I raassaonusnrrs NOWLES LOOIVI WORKS, OF VIOBGESTER,1 MASSACHUSETTS, A CORPORATION OF SHUTTLE-36X CONSTRUCTION L OOMS' 7 Applicatio'n m December- 20, 1928., SerialNo. 327,340.

, This invention relates to improvements in, the construction of shuttle boxes for l'oonis and it is the general object of the invention to provide an improved mounting for the box 15 plate to the endthat it maybe aligned properly with the lay ofthe loorni. I

Inlooms einployingwooden lays it is com-- mon practice to screw "the box plate directly" to the upper face of the lay wood. J ltis natu- -1 rally a 'diflicult matter to secure correct align inent because of the fact'that-v the wooddoes not always retain its shape- Itis common to employ shims which are placedbetween vthe box plate and the lay wood so that-the plate 1 may be properly aligned with the race plate which are held in position by the lay to de- 1 V :12 fine a plurality or spaced rests or adgustable supports on which the box plate may rest. In order that there may be as little internal stress set up in the "box plate as possible "I preferablysecure the screws closely together 5.5 in pairs, each pair having one'screw to pass through the boxplate into the lay wood and another closely adjacent a screw secured to the lay but adapted to form one of the sup porting points'tor the bottom of the box LII) plate- H With these and other objects in view which will appear as the description proceeds, my c invention resides in thecombination and arrangement of parts hereinafter described 45 and set forth in the claims. a

Inthe' accompanying drawings wherein I have shown two i'ornis of my'invention, I Fig. 1 represents a top plan view of one end of the lay-showing a bottom box plate and showing its preferred form of attachb ment to the lay wood,.

- Fig. 2 is a section on line 2-2 of Fig; 1, Fig. 3 is an enlarged vertical section on line 33 ofl ig. 1, and o h '1 Fig; fl isa'fragmentary vertical section similar to" a portion; of Fig. 2 but showing the modified "form of'box plate support;

The present "invention relatesto the box plate and it is deemed sufiticient to illustrate the same inconnection with the laywithout showing other parts or" the loom, such forinstance as the picking mechanism to propel the shuttle out of'the box or the driving mechanism to cause reciprocations of the lay The lay may include the lay beam lOgw-hich is supportedby swords oneof which is indi-- I cated at 11. As viewed in Fig; 2 the cloth will lie to the left of the sword 11 while the shuttle when properly boxed I during beat-up will'lie to the right of the vsword. c As shown in Fig, 3 I have provided abox plate 12 having a box back 13 and a binder 14. The

plate as shown in Fig. 1 may have a longitudinal slot 15 for the passage of the expelled bobbin of a depleted shuttle when the lay is used'in connection Wlull weft replenishing 1001115. The binder rnayniove arounda stud 16 which is carried by the plate. 1 The form of the lay wood and also the box plate and parts carried by the latter to define the shuttle box may be of usual construction and of theniselves form" no part of mypresent in-' vention. V i a The box plate is held to'the upper surface of the'lay by means of a plurality of wood screws 20, these wood screws being the same for boththe preferred and modified form of Said screws are located in sistance to the flight of the shuttle which it will be understood moves across the top surface 22 of the box plate.

hfy invention relates more particularly to provision for improved means to engage the under surface 23 of the box plate 12 and in carrying my invention into effect in its preferred form I provide closely adjacent each of the screws a wood screw which projects upwardly slightly from the top surface 31 of the lay wood. These screws 30 may be adjusted as to height and are the effective supports for the box plate. It will be seen by reference to Fig. 2 that there may be a. slight space between the upper surface 31 of the lay wood and the under side 23 of the box plate.

As suggested in Fig. 1 the screws 20 and 30 are grouped in pairs so that there will be 1 as little strain on the box plate as possible due to downward pressure'exerted by the wood screws20. In applying a box plate lay, and gauged to determine its position with respect to the race plate 40 which lies between the swords and along which a shuttle normally runs. If it is found for instance that the box plate is too high so that a shuttle upon arriving at the box is given an abrupt upward movement to cause wear on its lower surface, the screws 80 may be turneddown until they are placed so as to give the box plate its proper relation with respect to the race plate, after which the wood screws 20 will be screwed tightly into the lay wood.

Fig. 4c shows a modified form of the'invention wherein all of theelements are the same as in the preferred form with the exception of the screws which form the points of support for the box plate. As shown in Fig. f there is extending through the lay wood a plurality of screws preferably of the machine type. The upper ends of said screws are provided with heads 51 on which the lower surface 23 of the box plate rests. Said screws 50 are sufficiently long to be accessible from the under side of the lay and each screw is provided with a check nut 52. If desired the lower end of each screw 50 may be formed with a small square head 53 by means of which the screw may be turned, but I do not wish to be limited to this means for rotating the screws 50.

In the operation of the modified form of my invention adjustment of the upper sur face of the box plate may be effected without removing the latter from the lay merely by loosening the check nuts 52 and the wood screws 20 and moving the screws 50 until the upper surface 22 is properly related to the race plate. The check nuts 52 may then be tightened and the wood screws29 driven into the lay wood. It will be noted in the modified form that it is not necessary'to remove the box plate from the lay while the adjustments are being made.

Reference to Fig. 1 shows that the pairs of screws are arranged in two rows, one near the rear edge of the box plate and the other near the front edge 61. Because of the fact that the adjusting screws are located at different points transversely of the lay, 1 am able to adjust the box plate by moving it in a plane transverse of the lay.

From the foregoing it will be seen that I have provided a very simple means for supporting a box plate on the loom la said means presenting a plurality of points fixed with respectto the lay wood and independent of the upper surface of the'lay wood, said points being readily adjustable to determinev the location of the upper surface of the box plate. It will also be seen that the position ing and retaining screws are located preferably in pairs so as to effect as little internal straining of the box'plate aspossible. It will further be seen with respect to the modified form of the invention that the box plate maybe adjusted without removing the same from the lay. This is particularly desirable in the use of looms which have been in use for some time and wherein a slight twisting of the lay wood throws the box plate out of proper relation with respect to the race plate. 5

Under these conditions it would be a comparatively simple matter either to raise or lower the screws 50 without removing the box plate from the 100111. Furthermore the elements such as the box back 13 and the binder 14 which assist in defining'the shuttle box are also located with respect to the, positioning screws so that the shuttle box as. a whole may be adjusted as to vertical position relatively to the lay by means of my present invention. It will further be seen that by ar- '1 ranging some of the screws along the rear edge and others along the front edge of the box plate I am able to vary the angular rela tion of the box plate with respect to the lay Having thus described my invention it will 1 j be apparent that changes and modifications may be made therein by those skilled in the art withoutdeparting from the spirit and scope-of the invention and I do not wish to be limited to the details herein disclosed, but

and forming points of support for the bottom and means to hold said plate against .said.

box plate, and means tohold said plate against said elements.

2. In a loom lay, a bottom box plate, a plurality of positioning elements supported by the layand movable with respect to the latter in a direction substantially perpendicular to the bottombox plate and capable of assuming a plurality of positions relatively to the lay,

elements.

l 3. In a loom lay, a bottom box plate, a plurality of positioning elements supported by the lay and movable with respectto the latter in a direction substantially perpendicular to.

the bottom box plate and capable of assuming a plurality of positions relatively to the lay,

and means to hold said plate against .said elements, said means extending through said plate and into the lay.

7 l. In a loom lay, a bottom box p1ate,-a plurality of screws extending upwardly from the lay and capable of assuming a plurality-of positions relatively'toi the lay in avertical direction, said screws defining point-sf of sup port for the bottom box plate, and means to hold said plate against said screws.

5. In a loom lay, abotto1n box plate, re-.'

taining screws passing through thebottom box plate and into the lay, and positioning screws carried by and movable with respect to the lay and in engagement with the bottom box plate,'said positioning screws forming points of support for the plate and the retaining screws holding said plateagainst the positioning screws.

6. Ina loom lay, a bottom box plate, retaining screws passing through thebottom box plate and into the lay, and positioning screws carried by and movable with respect to the lay and in engagement with the bottom boxplate, said positioning screws forming points of support for the plate and the retaining screws holding'said plate against the positioning screws, each positioning screw being closely adjacent a retaining screw.

7. In a loom lay, a bottom box plate, retain ing'screws passing through the bottom box plate and into thelay, and positioning screws carried by and movable with respect to thelay and in engagement with the bottom box plate, said positioning screws forming points of support for the plate and the retaining screws holding said plate against the positioning screws, said positioning screws being accessi- V ble from the under side of the lay.

8. In a loom lay, a bottomfbox plate, positioning screws extending vertically through the lay and projecting below the under side of the latter, said screws being adjustable verticallyin the lay and presenting points of support on which the bottom box plate rests, and means to hold the bottom box plate against said screws, the latter being accessible from the under side of the lay and being movable is inposit-ion on the lay. I

'9. "Ina loom lay, a bottom boxfplate, positioning elementsmovable with respect to the i lay tolsu'pport t'liebottom box plate, said are ments being accessible and movablerelatively to the lay whilethe said plate is in position on I ith respecttothelatter while saidplate r the lay, and means'toholdsaid plate against.

with respect to the lay in a direction toward and from the bottom box plate and located near the rear edge of the plate, additional positioning means movable with respect to and I movable toward and from the bottom box plate,iand means to hold said plate against the positionmg means.

12. In a loom lay, bottom box-plate, a

race plate for the lay, positioning means normally fixed with respect to the lay but mov- 'able in the latter in a direction transversely of the race plate, said-positioning means defining a support for the bottom box plate to position the latter with respect to the race plate. 7

13. In a loom lay, a bottom box plate, binder and box back memberstodefine with the plate a shuttle box, said members being supported by and moving with the plate, and,

positioning members in engagement with the bottom box plate and normally held fixed to the lay and supported by the latter but mov able with respect to the lay to cause the/bot tombox plate and members to assume any one of a pluralityof positions relatively to the lay.

14, In a loom lay, a shuttle box forming member extending lon itudinally of the lay ;to engage the shuttle and assist in determining the direction of flight thereof, a plurality of spaced positioning elements arranged along the lay movable in a direction trans verse of the path of movement of the shuttle, and a plurality of retaining means to hold the member against the elements, said position ing elements and retaining means being capable of moving the member as a whole and relatively to the path of movement of the shuttle in a direction transverse to the path of the shuttle.

15. In a loom lay having guide means along which the shuttle travels, a member 7 supported by the lay to be engaged by and 4 it-1mm guide the shuttle, and two separate instrumentajlities coasting with each other and the member tohold the letter inposition, said in st -u mentalities both being movable in the same direction and transversely of the guide means to give the member different positions relatively to th guid means an bo h in normally fi ged relatively to the lay, one. of said instrumentalities holding the member against the other and the litter determining the position of the member with respect to the guide means.

In testimony whereof I have hereunto n'ffixed my signatu e.

JAMES F. OOLGAN. 

